Pressman's definition of software quality , “an effective software process applied in a manner that creates a useful product that provides measurable value for those who produce it and those who use it.” , emphasizes three dimensions .
explain each of the three dimensions of software quality .

Cloud computing service providers manage different computing resources based on the services they offer. which resources do iaas and paas providers not manage? iaas providers do not manage the for the client, whereas paas providers usually do not manage the for their clients. iaas- storage server operating system network paas- applications interafce storage vertualiation